Every year, JS provides 10-15 training programs for overseas engineers as a JICA's group training or a capacity-building part of a sewerage project.
As of March 2022, 599 participants from 77 nations have joined the training program in Japan.
| Nation | No. | Nation | No. | Nation | No. |
|---|---|---|---|---|---|
| Asia & Oceania: 24 countries | |||||
| 1. Bangladesh | 17 | 2. Bhutan | 2 | 3. Cambodia | 12 |
| 4. China | 12 | 5. Fiji | 10 | 6. Hong Kong | 4 |
| 7. India | 11 | 8. Indonesia | 30 | 9. Kiribati | 3 |
| 10. Korea | 6 | 11. Malaysia | 23 | 12. Mongol | 3 |
| 13. Myanmar | 20 | 14. Nepal | 7 | 15. Pakistan | 6 |
| 16. Palau | 2 | 17. Papua New Guinea | 12 | 18. Philippines | 39 |
| 19. Singapore | 12 | 20. Solomon Islands | 2 | 21. Sri Lanka | 19 |
| 22. Thailand | 31 | 23. Vietnam | 8 | 24. Western Samoa | 1 |
| Middle East: 12 countries | |||||
| 25. Bahrain | 1 | 26. Iran | 11 | 27. Iraq | 14 |
| 28. Jordan | 3 | 29. Lebanon | 1 | 30. Oman | 2 |
| 31. Palestine | 4 | 32. Saudi Arabia | 14 | 33. Syria | 14 |
| 34. Turkey | 14 | 35. United Arab Emirates | 1 | 36. Yemen | 2 |
| Europe: 5 countries | |||||
| 37. Albania | 2 | 38. Cyprus | 2 | 39. Macedonia | 1 |
| 40. Malta | 2 | 41. Serbia | 1 | ||
| Africa: 21 countries | |||||
| 42. Algeria | 8 | 43. Botswana | 1 | 44. Cameroon | 1 |
| 45. Côte d'lvoire | 1 | 46. Egypt | 20 | 47. Eswatini(Swaziland) | 3 |
| 48. Ethiopia | 8 | 49. Gabon | 2 | 50. Ghana | 1 |
| 51. Keyna | 16 | 52. Liberia | 9 | 53. Malawi | 1 |
| 54. Morocco | 12 | 55. Sierra Leone | 1 | 56. South Africa | 3 |
| 57. South Sudan | 2 | 58. Sudan | 9 | 59. Tanzania | 5 |
| 60. Zambia | 1 | 61. Zimbabwe | 6 | 62.Tunisia | 1 |
| Latin Ameica: 15 countries | |||||
| 63. Argentina | 1 | 64. Barbados | 1 | 65. Bolivia | 6 |
| 66. Brazil | 39 | 67. Chile | 2 | 68. Colombia | 11 |
| 69. Dominican Republic | 3 | 70. Ecuador | 2 | 71. Guatemala | 2 |
| 72. Guyana | 3 | 73. Honduras | 5 | 74. Jamaica | 7 |
| 75. Mexico | 4 | 76. Paraguay | 3 | 77. Peru | 18 |
| Total: 599 participants from 77 nations | |||||
